private function iniciar():void{
	btnVerde.addEventListener(
		MouseEvent.CLICK,
			function(e : MouseEvent) : void{
				cambiaColor(e, "green")
			},
		false , 0 , false);
	btnRojo.addEventListener(
		MouseEvent.CLICK,
			function(e : MouseEvent) : void{
				cambiaColor(e, "red")
			},
		false , 0 , false);
	btnAzul.addEventListener(
		MouseEvent.CLICK,
			function(e : MouseEvent) : void{
				cambiaColor(e, "blue")
			},
		false , 0 , false);
}
private function cambiaColor(e : MouseEvent, c:String):void{
	capaColor.setStyle("backgroundColor",c);
}
